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revision 716, Sat Nov 4 05:42:35 2000 UTC revision 744, Fri Dec 8 04:11:42 2000 UTC
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13  Description:  Description:
14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16    Name: Allen Leung
17    Date: Thu Dec  7 22:01:04 EST 2000
18    Tag:  leunga-20001207-cell-monster-hack
19    Description:
20    
21    Major MLRISC internal changes.  Affect all clients.
22    Summary:
23    
24    1.  Type CELLS.cell = int is now replaced by a datatype.
25        As a result, the old regmap is now gone.  Almost all interfaces
26        in MLRISC change as a consequence.
27    
28    2.  A new brand version of machine description tool (v3.0) that generates
29        modules expecting the new interface.  The old version is removed.
30    
31    3.  The RA interface has been further abstracted into two new functors.
32        RISC_RA and X86RA.  These functors have much simpler interfaces.
33        [See also directory MLRISC/demo.]
34    
35    4.  Some other new source->source code generation tools are available:
36    
37        a. MLRISC/Tools/RewriteGen -- generate rewriters from rules.
38        b. MLRISC/Tools/WhereGen -- expands conditional pattern matching rules.
39           I use this tool to generate the peephole optimizers---with the new
40           cell type changes, peephole rules are becoming difficult to write
41           without conditional pattern matching.
42    
43    5.  More Intmap -> IntHashTable change.  Previous changes by Matthias didn't
44        cover the entire MLRISC source tree so many things broke.
45    
46    6.  CM files have been moved to the subdirectory MLRISC/cm.
47        They are moved because there are a lot of them and they clutter up the
48        root dir.
49    
50    7.  More detailed documentation to come...
51    
52        NOTE: To rebuild from 110.30 (ftp distribution), you'll have to do
53        a makeml -rebuild first.  This is because of other other
54        changes that Matthias has made (see below).
55    
56    
57    ----------------------------------------------------------------------
58    Name: Matthias Blume
59    Date: 2000/11/30 23:12:00 JST
60    Tag: blume-20001130-filereorg
61    Description:
62    
63    Some manual updates and some file reorganizations in CM.
64    
65    ----------------------------------------------------------------------
66    Name: Matthias Blume
67    Date: 2000/11/24 17:45:00 JST
68    Tag: blume-20001124-link
69    Description:
70    
71    Drastically improved link traversal code for the case that the dynamic
72    value was already loaded at bootstrap time.  As a result, CM and CMB
73    now both load blazingly fast -- even on a very slow machine.  Also,
74    memory consumption has been further reduced by this.
75    
76    Warning: The format of the PIDMAP file has changed.  THerefore, to
77    bootstrap you have to do this:
78    
79    1. Run CMB.make
80    2. Make a symbolic link for the boot directory:
81         ln -s sml.boot.ARCH-OS xxx
82    3. "Rebuild" the boot directory:
83         ./makeml -boot xxx -rebuild sml ; rm xxx
84    4. Boot normally:
85          ./makeml
86    
87    ----------------------------------------------------------------------
88    Name: Matthias Blume
89    Date: 2000/11/21 21:20:00 JST
90    Tag: blume-20001121-tools
91    Description:
92    
93    Continued hacking on autoloading problem -- with success this time.
94    Also changed tool-plugin mechanism.  See new CM manual.
95    
96    ----------------------------------------------------------------------
97    Name: Matthias Blume
98    Date: 2000/11/19 14:30:00 JST
99    Tag:  blume-20001119-autoload
100    Description:
101    
102    Some hacking to make autoloading faster.  Success for CMB, no success
103    so far for CM.  There is a reduced structure CM' that autoloads faster.
104    (This is a temporary, non-documented hack to be eliminated again when
105    the general problem is solved.)
106    
107    ----------------------------------------------------------------------
108    Name: Matthias Blume
109    Date: 2000/11/17 14:10:00 JST
110    Tag: blume-20001117-pickle-lib
111    Description:
112    
113    1. Eliminated comp-lib.cm
114    2. Made pickle-lib.cm
115    3. Eliminated all uses of intset.sml (from comp-lib.cm)
116    4. Replaced all uses of intmap.{sig,sml} (from comp-lib.cm) with
117       equivalent constructs from smlnj-lib.cm (INtHashTable).
118    5. Point 4. also goes for those uses of intmap.* in MLRISC.
119       Duplicated intmap modules thrown out.
120    6. Hunted down all duplicated SCC code and replaced it with
121       equivalent stuff (GraphSCCFn from smlnj-lib.cm).
122    7. Rewrote Feedback module.
123    8. Moved sortedlist.sml into viscomp-lib.cm.  Eventually it
124       should be thrown out and equivalent modules from smlnj-lib.cm
125       should be used (IntRedBlackSet, IntListSet, ...).
126    
127    Confirmed that compiler compiles to fixpoint.
128    
129    ----------------------------------------------------------------------
130    Name: Allen Leung
131    Date: 2000/11/10 18:00:00
132    Tag: leunga-20001110-new-x86-fp
133    
134    A new x86 floating point code generator has been added.
135    By default this is turned off.  To turn this on, do:
136    
137        CM.autoload "$smlnj/compiler.cm";
138        Compiler.Control.MLRISC.getFlag "x86-fast-fp" := true;
139    
140    Changes:
141    
142    1.  Changed FTAN to FPTAN so that the assembly output is correct.
143    2.  Changed the extension callback for FTANGENT to generate:
144    
145              fptan
146              fstp  %st(0)
147        instead of
148              fptan
149              fstpl ftempmem
150    
151    3.  Numerous assembly fixes for x86.
152    
153    5.  Cleaned up the machine code output module x86/x86MC.sml and added
154        support for a whole bunch of instructions and addressing modes:
155    
156          fadd/fsub/fsubr/fmul/fdiv/fdivr  %st, %st(n)
157          faddp/fsubp/fsubrp/fmulp/fdivp/fdivrp  %st, %st(n)
158          fadd/fsub/fsubr/fmul/fdiv/fdivr  %st(n), %st
159          fiadd/fisub/fisubr/fimul/fidiv/fidivr mem
160          fxch %st(n)
161          fld %st(n)
162          fst %st(n)
163          fst mem
164          fstp %st(n)
165          fucom %st(n)
166          fucomp %st(n)
167    
168        All these are now generated when the fast fp mode is turned on.
169    
170    6.  Removed the dedicated registers %st(0), ..., %st(7) from X86CpsRegs
171    
172    ----------------------------------------------------------------------
173    Name: Matthias Blume
174    Date: 2000/11/09 11:20:00 JST
175    Tag: blume-20001109-scc
176    Description:
177    
178    Eliminated some code duplication:
179    
180    1. Added "where" clause to GraphSCCFn in SML/NJ Library.
181       (Otherwise the functor is useless.)
182    2. Used GraphSCCFn where SCCUtilFun was used previously.
183    3. Got rid of SCCUtilFun (in comp-lib.cm).
184    
185    ----------------------------------------------------------------------
186    Name: Lal George
187    Date: 2000/11/06 09:02:21 EST 2000
188    Tag: Release_110_30
189    Description:
190    
191    - Version 110.30
192    ----------------------------------------------------------------------
193  Name: Matthias Blume  Name: Matthias Blume
194  Date: 2000/11/04 14:45:00  Date: 2000/11/04 14:45:00
195  Tag: blume-20001104-mlbuild  Tag: blume-20001104-mlbuild

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